diff --git a/libnss.spec b/libnss.spec
index cefd07f..a96ac8d 100644
--- a/libnss.spec
+++ b/libnss.spec
@@ -7,7 +7,7 @@
 %define        with_nsspem 0
 Name:          libnss
 Version:       3.69
-Release:       1mamba
+Release:       2mamba
 Summary:       Network Security Services
 Group:         System/Libraries
 Vendor:        openmamba
@@ -41,6 +41,7 @@ BuildRequires: libsqlite-devel
 BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
 BuildRequires: libnspr-devel >= 4.13
+BuildRequires: glibc-devel >= 2.34
 BuildRequires: gawk
 BuildRequires: perl
 BuildRequires: pkgconfig
@@ -277,6 +278,9 @@ ln -s nss3 %{buildroot}%{_includedir}/nss
 %{_includedir}/nss3/*
 
 %changelog
+* Mon Aug 16 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 3.69-2mamba
+- rebuilt with glibc 2.34
+
 * Fri Aug 06 2021 Automatic Build System <autodist@mambasoft.it> 3.69-1mamba
 - automatic version update by autodist